Chain-drive mechanism for bobbin shafts of roving frames



March 11, 19.24.*- 4 1,486,83n

H. BROOK CHAIN DRIVE MECHANISM FOR BOBBIN SHAFTS OF ROVING FRAMES FiledOct. 29. 1925 Qoocgo il'oriwy Patented ar., 11, 1924.

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FED.

HARRY BROOK, OF 'WOONSOCKET, RHODE ISLAND, ASSIGNOR TO WOONSOCKET MA-CHINE @t PRESS CO., INC., 0F WOONSQCKET, RHODE ISLAND, A COR-POBATON OFRHODE ISLAND.

CHAIN-DRIVE-EIECHNSM FOR .BOBBIN SHAFTS OF ROVING FRAMES.

Application filed October 29, 1923. Serial No. 671,404.

To all whom t may conce/m.'

Be it known that l, Hanny Bacon, a citizen of the United States,residing at Woonsocket7 in the county of lrovidence, State of RhodeIsland, have invented a certain new and useful Improvement inlChain-Drive Mechanism for Bo-bbin Shafts of Roving Frames, of which thefollowing is a. specification, reference being had therein to theaccompanying drawings. v

The invention p-rovides simplified and improved chain-drive mechanismfor transmitting rotary motion from the compound of a roving frame tothe bobbin-shafts of the latter.

The invention is an improvement upon the chain-drive mechanism, commonlytermed the Daly drive, which is shown, described, and claimed in the U.S. Patent to R. B. Daly, No. 895,541, granted August 11, 1908, forslubber or Hy frame. The Daly drive comprises a sprocket-Wheel connectedwith the sleeve of a roving frame compound, a sprocket-chain extendingfrom such sprocket-Wheel to one on an intermediately'located jackshaft,a second sprocket-chain connecting another sprocket-Wheel on thejaclrshaft with one on one of thebobbin-shafts, spur-gears fixed on thebobbin-shafts and transmitting rotary motion from one to the otherthereof, and means including a cam for controlling the position of thejackshaft to vmaintain the two chains at 'a uniform tension during theup-and-down traverse movements of the traverse-rail and bobbin-shafts.

My invention dispenses With the spurgears aforesaid for transmittingrotary motion from one bobbin-shaftto the other, and places the secondsprocket-chain in direct driving engagement with a sprocket-wheel uponeach of the bobb-in-shafts'. In this latter respect. the improveddrive-chain mechanism is differentiated from the Daly drive asheretofore constituted.

An embodiment of the invention is illustrated in the drawings, in whichlatter,-

VFig. 1 is a view of that portion of a roving frame containing the saidembodiment, in section in a vertical plane extending from front to rear.

Fig. 2 is a plan view, with portions of the covers removed.

Fig. 3 is a View in side elevation partly sectional on a line 3, 3, ofFig. 2.

Fig. 4 isa view in section on line 4, 4, of Fig. l.

F ig. 5 is a diagram illustrating the layout of the controllingcam-piece to Which referencel is made hereinafter.

The drawings do not show the usual traverse-rail, but they do show aside 1 (Fig. 1,) such as that Which in practice is connected with thehead end of the traverse-- rail, its outer side having the groove 1areceiving a vertically extending guide-rib 2 upon the head 3 of themachine-frame, on which guide-rib the slide moves up and down in thevertical traversing movement of the traverse-rail. The covers 21, 22,hereinafter described, constitutingV the bobbin-shaft gear-box, areattached to the said slide by means of suitable bolts 111, 111. Thedrawings show the end portions of bobbin-shafts 1, 4C, as mounted inbearings 5, 5, and 51, 51, in connection with the bottom cover-section22 of the said gear-box and with the said slide respectively. rlhere aretwo bobbinshai'ts as required'for the driving of the tivo longitudinallines of bobbins employed in connection with the tivo lines offlierspindles in a roving frame, the said bobbinshafts being driventhrough connections with the sleeve 6 surrounding the main or firstmotion shaft 7, the said sleeve being an element of the compound andbeing driven in Well-known manner at progressivelv varying speed in theoperation of the machine. The chain-drive mechanism constitutes in thecase of the Daly drive and the present invention, the bobbin-shaftdriving connections.

Referring novv to the chain-drive mechanismrv A driving sprocket-Wheel'71 is fixedly connected with the compound driving sleeve 6. VAsprocket-chain 9 extends vpartvray around the driving sprocket-Wheel 71,and partway around a sprocket-Wheel 72 on a jackshaft 73 that is locatedadjacent and above the rear hobbin-shaft 4. vThe jack-V shaft 73corresponds with the jackshaft of the usual Daly drive, and like thelatter it is heldat the proper distance from the main shaft 7, by meansof a radius arm 8 having a hub or bearing 81 which surrounds the shaft 7concentrically. The said radius arm 8 is in this instance of forkedyoke-shape, ,its branches 82, 83, being provided with

